Résumé
Congenital cystic adenomatoid lung malformations [CCAM] are, todays, more frequently diagnosed during the pregnancy thanks to progresses in ultrasonographic explorations. On occasion, CCAM may remain asymptomatic and be discovered after being complicated by infection. This was the case of our patient. Amani _ was delivered by spontaneous vaginal delivery at term after a well-controlled pregnancy. She had good staturo-ponderal and psychomotor developments. When she was eight-year-old, she was treated for right pneumonia. Three years later, she was admitted in a general pediatrie unit because of right lower lobe abscess. Thoracic computed tomography, indicated since the infection was recurrent in the same lobe and after the constatation of a persistent cystic feature on chest radiograph, revealed multiple cystic lesions compatible with CCAM. The anatomopathological study of the surgically removed lobe concludes for a cystic adenomatoid lung malformation type I. Cystic adenomatoid lung malformations are frequently revealed by recurrent infections in old children. Thoracic computed tomography is very interesting for the diagnosis when pneumonia relapses in the same site